| Family | Genus | Species |
|---|---|---|
| Botrydiaceae | 2 | 6 |
| Botrydiopsidaceae | 2 | 16 |
| Botryochloridaceae | 3 | 10 |
| Centritractaceae | 1 | 10 |
| Characiopsidaceae | 1 | 1 |
| Heteropediaceae | 1 | 35 |
| Mischococcaceae | 1 | 1 |
| Ophiocytiaceae | 1 | 5 |
| Pleurochloridaceae | 4 | 20 |
| Tribonemataceae | 3 | 38 |
| Vaucheriaceae | 1 | 38 |
| Xanthonemataceae | 2 | 36 |